How the Universe Works - Planets

Seizoen: 1 - Aflevering: 5 / 5 - Eerst uitgezonden: 17 mei 2010 - Episode ID: 525354

There are just eight planets in our solar system, but there could be a hundred billion planets in our Milky Way galaxy alone. This show follows the journey of planets as they grow from grains of dust to the magnificently diverse worlds we see today.